1. Giriş
This manual provides detailed instructions for the safe and effective operation of your TOOLTOP ET120M 120MHz Handheld Digital Oscilloscope. Please read this manual thoroughly before using the device to ensure proper functionality and to prevent damage.
2. Güvenlik Bilgileri
Always observe the following safety precautions when using the ET120M oscilloscope:
- Cihazı ıslak veya nemli ortamlarda çalıştırmayın.amp koşullar.
- Ensure the device is powered off before connecting or disconnecting probes.
- Yalnızca sağlanan aksesuarları veya onaylı yedek parçaları kullanın.
- Do not attempt to open or modify the device; refer all servicing to qualified personnel.
- Cihazınızı güçlü elektromanyetik alanlardan uzak tutun.
3. Paket İçeriği
Aşağıda listelenen tüm öğelerin paketinizde mevcut olduğundan emin olun:
- TOOLTOP ET120M Handheld Digital Oscilloscope
- 100MHz Oscilloscope Probe
- USB Şarj Kablosu
- Kullanıcı Kılavuzu
- Bez Çanta

Şekil 3.1: Paket İçeriği
4. Ürün Bittiview
4.1. Cihaz Özellikleri
The TOOLTOP ET120M is a compact and portable handheld digital oscilloscope designed for various electrical testing and repair applications. Key features include:
- 120MHz analog bandwidth and 500MS/s real-time sampling oranı.
- 2.4-inch 320x240 clear color LCD screen.
- Integrated square wave signal output (1kHz, 10KHz, 100KHz, 1MHz).
- 12 types of automatic parameter measurements (Vpp, Vrms, Vavg, Vp, Vmax, Vmin, F, T, T+, T-, Du+, Du-).
- Three scan modes: Auto, Normal, and Single.
- Ability to store 2500 DSO waveforms with thumbnail browsing.
- Built-in rechargeable lithium battery for up to 6 hours of continuous use.
- Durable design with a silicone protective cover.

Şekil 4.1: Başlıca Özelliklerview
4.2. Bileşen Tanımlaması
Familiarize yourself with the main components and controls of the ET120M oscilloscope:

Şekil 4.2: Ön View of ET120M Oscilloscope
- Ekran Görüntüsü: 2.4-inch LCD for waveform display and menu navigation.
- Input BNC Connector: For connecting the oscilloscope probe.
- Kontrol Düğmeleri: Including MENU, F1, F2, SAVE, AC/DC, 1X/10X, 50%, TRIG, EDGE, STOP, AUTO, and directional/OK buttons for navigation and settings adjustment.
- USB Bağlantı Noktası: Cihazı şarj etmek için.
5. Kurulum
5.1. İlk Şarj
Before first use, fully charge the built-in lithium battery using the provided USB charging cable and a standard USB power adapter (not included). The charging indicator will show the charging status.
5.2. Prob Bağlantısı
Connect the oscilloscope probe to the BNC input connector on the top of the device. Ensure the connection is secure. Set the probe attenuation switch (if applicable) to the desired setting (e.g., 1X or 10X) and match this setting on the oscilloscope via the 1X/10X button.
6. Kullanım Talimatları
6.1. Güç Açma/Kapatma
Press and hold the power button (usually located on the side or top) to turn the device on or off.
6.2. Basic Waveform Acquisition
After powering on, connect the probe to the circuit under test. The oscilloscope will display the waveform. Use the directional buttons to navigate menus and adjust settings.
6.3. Waveform Acquisition Modes
The ET120M supports three scan modes:
- Otomatik: Automatically adjusts time base and vertical amplitude for a stable waveform display. Press the OTOMATİK button for one-key waveform adaptation.
- Normal: Displays a waveform only when a trigger condition is met.
- Bekar: Captures and displays a single waveform when a trigger condition is met, then stops.

Figure 6.1: Auto Waveform Adaptation
6.4. Parameter Measurement
The device can automatically measure 12 different waveform parameters. Access these measurements through the menu system. Parameters include Peak-to-Peak Voltage (Vpp), Root Mean Square Voltage (Vrms), Average Voltage (Vavg), Peak Voltage (Vp), Maximum Voltage (Vmax), Minimum Voltage (Vmin), Frequency (F), Period (T), Positive Pulse Width (T+), Negative Pulse Width (T-), Positive Duty Cycle (Du+), and Negative Duty Cycle (Du-).

Figure 6.2: Automatic Measurement Functions
6.5. Square Wave Signal Output
The ET120M can generate square wave signals at specific frequencies. Navigate to the signal output function in the menu to select between 1kHz, 10KHz, 100KHz, and 1MHz output frequencies. This feature is useful for testing circuits.

Figure 6.3: Square Wave Signal Output Function
6.6. Waveform Storage and Recall
The device can store up to 2500 DSO waveforms. Use the KAYDETMEK button to store the current waveform. Stored waveforms can be browsed via thumbnails for easy recall and analysis.

Figure 6.4: Waveform Storage and Browsing
6.7. Adjusting Waveform Parameters
You can manually adjust various waveform display parameters to fine-tune your measurements:
- Zaman Tabanı: Adjusts the horizontal scale (time per division).
- Amplitude (Vertical Sensitivity): Adjusts the vertical scale (volts per division).
- Trigger Slope: Sets the trigger to rising or falling edge.
- Tetikleme Seviyesi: ses seviyesini ayarlartage level at which the waveform is triggered.

Figure 6.5: Adjusting Waveform Display Parameters
7. Bakım
7.1. Temizlik
Cihazı temizlemek için yumuşak, kuru bir bez kullanın. İnatçı kirler için biraz daha kuru bir bez yeterli olacaktır.amp Cihaza sıvı girmemesine dikkat ederek hafif deterjanlı bir bez kullanabilirsiniz. Aşındırıcı temizleyiciler veya çözücüler kullanmayın.
7.2. Depolama
When not in use for extended periods, store the oscilloscope in a cool, dry place, away from direct sunlight and extreme temperatures. It is recommended to store it in the provided cloth bag to protect it from dust and scratches.
7.3. Pil Bakımı
To prolong battery life, avoid fully discharging the battery frequently. If storing for a long time, charge the battery to approximately 50% every few months.
8. Sorun Giderme
If you encounter issues with your ET120M oscilloscope, refer to the following common problems and solutions:
- Cihaz açılmıyor: Pilinin dolu olduğundan emin olun. USB şarj kablosunu bağlayın ve tekrar deneyin.
- Dalga biçimi görüntülenmiyor: Check probe connection. Ensure the probe is properly connected to the circuit under test. Adjust vertical sensitivity and time base settings. Try the AUTO function.
- Unstable waveform: Adjust the trigger level and trigger slope. Ensure the trigger mode is appropriate for the signal.
- Hatalı ölçümler: Verify probe attenuation setting (1X/10X) matches the device setting. Perform a probe compensation if necessary (refer to advanced operation in a full manual).
For persistent issues, contact TOOLTOP customer support.
9. Özellikler
9.1. Genel Özellikler
| Görüntülemek | 320x240 LCD ekran |
| Görüntüleme Alanı | 50mm x 40mm |
| Arka ışık | White, brightness adjustable |
| Empedans | x1: 1MΩ / x10: 10MΩ |
| Pil | 18650 lithium battery (built-in) |
| Otomatik Kapatma | 15 dakika boyunca işlem yapılmadı |
| Dalga Formu Depolama | 2500 DSO dalga formu |
| Boyut | 124mm x 80mm x 35mm |
| Çalışma Koşulları | 0°C ~ +40°C; <75%RH |
| Depolama Koşulları | -10°C ~ +60°C; <90%RH |
9.2. Oscilloscope Specifications
| Analog Bant Genişliği | 120MHz |
| Maksimum Gerçek Zamanlı Sampling Oranı | 500 MSps |
| Dikey Çözünürlük | 8 bit |
| Dikey Doğruluk | ± (% 5 + 0.2div) |
| Auto Zero Reference | DC ölçümü sırasında |
| Tetik Seviyesi | ±3.8 div (adım başına 0.1 div) |
| Tetik Pozisyonu | ±6 div (adım başına 0.1 div) |
| İmleç Fonksiyonu | ΔV, Δt, 1/Δt |
| Doğrusal Olmayanlık | ±1 bits |
| Bağlantı Yöntemi | Doğru Akım/Akım |
| Division Vertical | ±3.8 Horizontal: 12 |
| Zaman Tabanı Aralığı | 6ns / böl ~ 50s / böl |
| Zaman Tabanı Doğruluğu | ±(%0.01+0.1böl) |
| Tarama Modu | Otomatik/Tekli/Normal |
| Tetik Eğimi | Yükselen / Düşen |
| Kayıt Uzunluğu | 12bölüm |
| Otomatik Yapılandırma | Automatically set time base and vertical amplütuf |
| Otomatik Ölçüm Fonksiyonları | Vpp, Vrms, Vavg, Vp, Vmax, Vmin, F, T, T+, T-, Du+, Du- |
| Dikey Hassasiyet Aralığı | x1: 50mV/div ~ 10V/div; x10: 500mV/div ~ 100V/div |
10. Garanti ve Destek
For warranty information or technical support, please refer to the documentation provided with your purchase or contact TOOLTOP customer service directly. Keep your purchase receipt as proof of purchase.